- FondsHoyle - Papers of Sir Fred Hoyle
- SeriesBox 137 - Box 137
- File1 - Handwritten manuscript
- File2 - Typewritten manuscript of 137/1.
- File3 - Typewritten manuscript . Handwritten corrections.
- File4 - Handwritten manuscript . With a second handwritten manuscript .
- File6 - Handwritten manuscript of 137/5.
- 3 more...